What would you like to do?
no b/c they are a different format
In general, yes. All BD players I know of will play regular DVD's.
No, you need a BlueRay player, or an XBox 360 - it has one built in.
Yes you can play regular DVD's on a blu ray
No. Blu-Rays are NOT DVDs and will only work on Blu-Ray players and HDTVs
No it cannot. Dvd are a different format than a blue ray DVD
Yes. You can play blu-ray DVDs on a 3D blu-ray player.
In DVD Players
No. They will only play on Blu-Ray players, blu-ray enabled laptops, blu-ray enabled PC's and Playstation 3's
Yes, for DVDs can be played on ANY Blu-Ray player thanks to the backwards compatibility feature